Recent trends in reinforcement corrosion assessment using piezo sensors via electro mechanical impedance technique

Talakokula Visalakshi; Suresh Bhalla; Ashok Gupta; Bishwajit Bhattacharjee

doi:10.1117/12.2041654

8 March 2014 Recent trends in reinforcement corrosion assessment using piezo sensors via electro mechanical impedance technique

Talakokula Visalakshi, Suresh Bhalla, Ashok Gupta, Bishwajit Bhattacharjee

Author Affiliations +

Proceedings Volume 9061, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2014; 906139 (2014) https://doi.org/10.1117/12.2041654
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2014, San Diego, California, United States

Abstract

Reinforced concrete (RC) is an economical, versatile and successful construction material as it can be moulded into a variety of shapes and finishes. In most cases, it is durable and strong, performing well throughout its service life. However, in some cases, it does not perform adequately due to various reasons, one of which is the corrosion of the embedded steel bars used as reinforcement. . Although the electro-mechanical impedance (EMI) technique is well established for damage detection and quantification of civil, mechanical and aerospace structures, only limited studies have been reported of its application for rebar corrosion detection in RC structures. This paper presents the recent trends in corrosion assessment based on the model derived from the equivalent structural parameters extracted from the impedance spectrum of concrete-rebar system using the lead zirconate titanate (PZT) sensors via EMI technique.

Citation Download Citation

Talakokula Visalakshi, Suresh Bhalla, Ashok Gupta, and Bishwajit Bhattacharjee "Recent trends in reinforcement corrosion assessment using piezo sensors via electro mechanical impedance technique", Proc. SPIE 9061, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2014, 906139 (8 March 2014); https://doi.org/10.1117/12.2041654

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